In every guide I read about prot pally it is said to reforge parry/dodge into mastery BUT in one guide (I can't find it anymore) it says that you must reforge the one with the higher rating, not percent.

Rating or % ? Because right parry % is higher than dodge but rating is below

So in that example, Horn of Winter / Strength of Earth Totem gives you 1.4% dodge and 0.7% parry. That's for a "pre-raid" gear set of mostly 346 gear, the values will get a little smaller for full 359.